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N621 Remark Code: Required Forms and Reports Not Payable

N621 means the payer will not pay charges for forms, reports, or chart notes that the jurisdiction requires. In many workers' compensation systems, required reports are considered part of the treating provider's duties and are not separately reimbursed.

Quick facts

Code
N621 (RARC N621)
Status
Active In use since July 15, 2013.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): The charge for the required document is a provider write-off. Injured workers generally cannot be billed for it.
Official description
Charges for Jurisdiction required forms, reports, or chart notes are not payable.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N621 means

Workers’ compensation and other injury systems require treating providers to submit certain documents, such as first reports of injury, progress reports, work status forms, and chart notes, to keep the claim moving. N621 says that when the jurisdiction requires a document, the payer won’t pay a separate charge for preparing it.

It usually appears with CARC P13, 97, or 234.

Common causes

  • A report fee was billed for a routine required form.
  • Chart notes were billed as a separate service when they accompany the bill.
  • A special report code was used when the report didn’t meet the jurisdiction’s definition of a separately payable report.

What to do

  1. Check the jurisdiction’s fee schedule rules to see which reports, if any, are separately payable and what makes them so, such as a carrier request.
  2. Write off the charge if the report was a required routine document.
  3. Appeal with evidence if the report was separately payable, for example a carrier’s written request for a narrative report.
  4. Keep sending required documents with your treatment bills.

How to prevent it

Set up workers’ comp billing rules so routine required reports go out with bills but without a charge, and bill separately only for reports the jurisdiction pays for, keeping the carrier’s request on file.

Codes that may appear with N621

  • CO-P13 (Payment reduced or denied based on workers' compensation jurisdictional regulations or payment policies, use only if no other code is applicable.): Reduced or denied based on workers' compensation jurisdictional regulations or payment policies.
  • CO-97 (The benefit for this service is included in the payment/allowance for another service/procedure that has already been adjudicated.): The benefit is included in the payment for another service.
  • CO-234 (This procedure is not paid separately.): This procedure is not paid separately.
  • N629 (Reviews/documentation/notes/summaries/reports/charts not requested.): Reviews, notes, or reports that were not requested are not payable.
  • N390 (This service/report cannot be billed separately.): This service or report cannot be billed separately.
  • N493 (Missing Doctor First Report of Injury.): The Doctor First Report of Injury is missing.

N621 FAQ

Are all report charges denied in workers' comp?

No. Many jurisdictions pay for specific reports, such as special narrative reports requested by the carrier or impairment ratings, while treating routine required reports as included. Check the state's fee schedule rules.

Do I still need to send the required report?

Yes. N621 is about payment, not the obligation. Missing required reports can delay or deny payment for the treatment itself.

Can I bill the patient for copies?

Generally not for reports required by the claim. Record copy fees for other purposes follow separate state rules.